ATHENA Fork Oil Seal Kit 40x49.5x7/9.5 mm for KTM and APRILIA 1987-1995

The ATHENA 40x49.5x7/9.5 mm P40FORK455065 fork oil seal kit is designed for KTM EGS 250, EGS 300, EGS 620, EXC 125, EXC 250, EXC 300, GS 125, GS 250, GS 300, MX 125, MX 250, MX 300, MX 500, MXC 550, SX 125, SX 300, SX 620 and APRILIA PEGASO 650, TUAREG 350, TUAREG 600 from 1987 to 1995. Fitted at the top of the fork leg, under the dust seal, the oil seal keeps the fork sealed. A leak lowers the oil level, the damping changes and oil can run onto the brake disc.

Specifications

• Brand: ATHENA
• Manufacturer part number: P40FORK455065
• EAN code: 8055681307896

When to replace it?

• Film of oil on the inner tube after a few fork strokes.
• Oil traces on the fork leg, the caliper or the brake disc.
• Fork that becomes softer on one side.

Before replacing a leaking seal, clean under its lip: a trapped grain of sand is sometimes enough to cause the leak. If it still leaks, replace the seals on both legs. Measure your seal (inside diameter, outside diameter and height) or check the original part number: the size is in the name.

Fitting tips

1. Drain and disassemble the fork leg following the manual, then remove the dust seal, the circlip and the old seal.
2. Check the fork bushings and the condition of the inner tube: a scratch or a rust spot will cut a new seal.
3. Protect the end of the tube (plastic bag), oil the lip and drive the seal in straight with a seal driver of the right diameter.
4. Refit the circlip and a new dust seal, then reset the fork oil level.

Why ATHENA?

Founded in 1973 near Vicenza, Athena is an Italian engine gasket specialist that has made its gaskets on its own production lines since day one, as well as a renowned manufacturer of pistons and cylinder kits. The brand supplies original equipment to manufacturers such as KTM, Ducati, Fantic, Piaggio and Triumph, and is a partner of the MXGP motocross world championship.

Spare parts and items to plan

• Fork dust seals : ATHENA · XTRIG
• Fork oil : LIQUI MOLY 10W 500 ml
• Fork bushings : INNTECK · ATHENA

Frequently asked questions

Do I have to change both seals?
Yes: they have the same age and the same mileage. Replace both oil seals and, ideally, both dust seals.

Why is my new seal leaking?
Most often because of a scratched or pitted tube, a lip turned back during installation, or worn bushings that let the tube develop play.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
APRILIA PEGASO 650 1989
APRILIA TUAREG 350 1990
APRILIA TUAREG 350 1989
APRILIA TUAREG 350 1988
APRILIA TUAREG 600 1993
APRILIA TUAREG 600 1992
APRILIA TUAREG 600 1991
APRILIA TUAREG 600 1990
APRILIA TUAREG 600 1989
APRILIA TUAREG 600 1988
KTM EGS 250 1995
KTM EGS 250 1994
KTM EGS 250 1993
KTM EGS 250 1992
KTM EGS 250 1991
KTM EGS 250 1990
KTM EGS 300 1992
KTM EGS 620 1995
KTM EGS 620 1994
KTM EXC 125 1994
KTM EXC 125 1993
KTM EXC 125 1992
KTM EXC 250 1995
KTM EXC 250 1994
KTM EXC 250 1993
KTM EXC 250 1992
KTM EXC 300 1994
KTM EXC 300 1993
KTM EXC 300 1992
KTM GS 125 1995
KTM GS 125 1994
KTM GS 125 1993
KTM GS 125 1992
KTM GS 125 1991
KTM GS 125 1990
KTM GS 125 1989
KTM GS 125 1988
KTM GS 125 1987
KTM GS 250 1993
KTM GS 300 1995
KTM GS 300 1993
KTM MX 125 1994
KTM MX 125 1993
KTM MX 125 1992
KTM MX 125 1991
KTM MX 125 1990
KTM MX 125 1989
KTM MX 125 1988
KTM MX 125 1987
KTM MX 250 1995
KTM MX 250 1994
KTM MX 250 1993
KTM MX 250 1992
KTM MX 300 1994
KTM MX 300 1993
KTM MX 300 1992
KTM MX 500 1992
KTM MXC 550 1993
KTM SX 125 1994
KTM SX 125 1993
KTM SX 125 1992
KTM SX 125 1991
KTM SX 125 1990
KTM SX 125 1989
KTM SX 125 1988
KTM SX 125 1987
KTM SX 300 1993
KTM SX 620 1995
KTM SX 620 1994